<script setup>
import {defineProps} from 'vue'
import {useCartStore} from '@/stores/cart.js'

const cartStore = useCartStore()
const props = defineProps(['product','shopInfo'])


const addCart = (index)=>{
    // 1.对该商品的数量进行++
    props.product[index].number ++
    // 2.判断购物车是否存在
    let res = cartStore.cartList.find(item=>item.name == props.shopInfo.name)
    if (!res) {
        //2.1购物车不存在----->创建购物车
        let list = {name:'',list :[]}
        list.name = props.shopInfo.name
        list.list.push(props.product[index])
        cartStore.cartList.push(list)
    }else{
        //2.2购物车存在---->3.判断商品是否存在
        let ress = res.list.find(item=>item.id==props.product[index].id)
        if (!ress) {
            //3.1商品不存在--->创建商品
            res.list.push(props.product[index])
        }
    }
    console.log(cartStore.cartList);
}

const del = (index)=>{
    if (props.product[index].number>=1) {
        props.product[index].number --
    }
    // 如果商品数量为0的时候 把购物成里面的商品删除
    if(props.product[index].number==0){
        let res = cartStore.cartList.find(item => item.name === props.shopInfo.name)
            if(res){
                console.log('删除')
                // 3.删除----> filter
                res.list = res.list.filter(item => item.id !== props.product[index].id)
            }
    }
    console.log(cartStore.cartList)
}
</script>

<template>
    <div class="product" v-for="(item,index) in props.product" :key="item.id">
        <div class="product_img">  <!-- <div class="product_img--min"> -->
            <img :src="`http://www.dell-lee.com/imgs/vue3/${item.imgName}.png`" alt="">
        </div>
        <div class="product_content">
            <div class="product_content_title">{{item.title}}</div>
            <div class="product_content_sales">月售 {{ item.sales }} 件</div>
            <slot></slot>
            <div class="product_content_price">￥{{item.price}} <span class="product_content_old_price">￥{{item.oldPrice}}</span></div>
            
        </div>
        <div class="product_number">
            <span class="product_number_minus" @click="del(index)">-</span>
            {{item.number}}
            <span class="product_number_plus" @click="addCart(index)">+</span>
        </div>
    </div>
</template>

<style lang="scss" scoped>
@import '@/style/viriables.scss';
@import '@/style/mixins.scss';
.product {
    padding: .18rem;
    box-sizing: border-box;
    display: flex;
    position: relative;
    border-bottom: .01rem solid $content-bgColor;

    &_img {
        width: .68rem;
        margin-right: .18rem;

        img {
            width: .68rem;
            height: .68rem;
        }
    }
    &_img--min {
        width: .48rem;
        margin-right: .18rem;

        img {
            width: .48rem;
            height: .48rem;
        }
    }
    &_content {
        flex: 1;
        display: flex;
        flex-direction: column;
        justify-content: space-between;

        &_title {
            font-size: .14rem;
            font-weight: bold;
            color: $content_fontcolor;
            @include ellipse;
        }
        &_price {
            color: $hightlight-fontColor;
        }
        &_old_price {
            color: $light-fontColor;
            text-decoration: line-through;
        }
    }
    &_number {
        position: absolute;
        right: .18rem;
        bottom: .18rem;

        &_minus,&_plus {
            display: inline-block;
            width: .2rem;
            height: .2rem;
            border-radius: 50%;
            font-size: .16rem;
            text-align: center;
        }
        &_minus {
            border: .01rem solid $medium-fontColor;
            color: $medium-fontColor;
            margin-right: .08rem;
        }
        &_plus {
            background-color: $btn-bgColor;
            color: $bgColor;
            margin-left: .08rem;
        }
    }
}
</style>